Access Restriction Bypass Affecting canonical/lightdm package, versions [,1.4.3)[1.6.0,1.6.2)[1.7.0,1.7.14)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.37% (29th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-CANONICALLIGHTDM-2635961
  • published26 Jan 2022
  • disclosed2 Feb 2014
  • creditUnknown

Introduced: 2 Feb 2014

CVE-2013-4331  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade canonical/lightdm to version 1.4.3, 1.6.2, 1.7.14 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. Light Display Manager (aka LightDM) 1.4.x before 1.4.3, 1.6.x before 1.6.2, and 1.7.x before 1.7.14 uses 0664 permissions for the temporary .Xauthority file, which allows local users to obtain sensitive information by reading the file.

References

CVSS Base Scores

version 3.1